Conformational Analysis of the Trinucleoside Diphosphate 3'd(A2'-5'A2'-5'A). An NMR and CD Study

Overview

Journal Nucleic Acids Res

Publisher Oxford University Press

Specialty Biochemistry

Date 1983 Jul 11

PMID 6866773

Citations 4

Authors

J Doornbos

R Charubala

W Pfleiderer

C Altona

Affiliations

Soon will be listed here.

Abstract

A 500 MHz and 300 MHz NMR study of the trinucleoside diphosphate 3'd(A2'-5'A2'-5'A) is presented. In addition, circular dichroism is used to study base stacking in the title compound. The complete 1H-NMR spectral assignment of the sugar ring proton signals is given. Information about the sugar ring (N- or S-type conformation) and about the backbone geometry along C4'-C5' and C5'-O5' bonds is obtained from the NMR coupling constants. It is shown that the trimer mainly occurs in the N-N-N stacked state at low temperatures; the presence of a minor amount of N-N-S conformational sequence is indicated.

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Association of 2'-5' oligoribonucleotides.

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References

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